High severity · published Aug 9, 2024
CVE-2023-31315
Improper validation in a model specific register (MSR) could allow a malicious program with ring0 access to modify SMM configuration while SMI lock is enabled, potentially leading…
7.5
CVSS
0.6%
EPSS
No
On KEV
Description
Improper validation in a model specific register (MSR) could allow a malicious program with ring0 access to modify SMM configuration while SMI lock is enabled, potentially leading to arbitrary code execution.
CVSS vector
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
Attack vector
Local
Complexity
High
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 50% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
1G
1st Gen AMD EPYC™ Processors · AMD
various before Naples PI 1.0.0.M · source: vendor
2G
2nd Gen AMD EPYC™ Processors · AMD
various before Rome PI 1.0.0.J · source: vendor
3G
3rd Gen AMD EPYC™ Processors · AMD
various before Milan PI 1.0.0.D · source: vendor
4G
4th Gen AMD EPYC™ Processors · AMD
All versions, or not specified · source: vendor
AA
AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics · AMD
All versions, or not specified · source: vendor
AE
AMD EPYC™ Embedded 3000 · AMD
various · source: vendor
AE
AMD EPYC™ Embedded 7002 · AMD
various · source: vendor
AE
AMD EPYC™ Embedded 7003 · AMD
various · source: vendor
AE
AMD EPYC™ Embedded 9003 · AMD
All versions, or not specified · source: vendor
AR
AMD Ryzen™ 3000 Series Desktop Processors · AMD
various · source: vendor
AR
AMD Ryzen™ 3000 Series Mobile Processor with Radeon™ Graphics · AMD
various before Picasso-FP5 1.0.1.2 · source: vendor
AR
AMD Ryzen™ 4000 Series Desktop Processors with Radeon™ Graphics · AMD
various before ComboAM4v2PI 1.2.0.cb · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-31315
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-31315
www.amd.com
https://www.amd.com/en/resources/product-security/bulletin/amd-sb-7014.html
media.defcon.org
https://media.defcon.org/DEF%20CON%2032/DEF%20CON%2032%20presentations/DEF%20CON%2032%20-%20Enrique%20Nissim%20Krzysztof%20Okupski%20-%20AMD%20Sinkclose%20Universal%20Ring-2%20Privilege%20Escalation.pdf
news.ycombinator.com
https://news.ycombinator.com/item?id=41475975
www.darkreading.com
https://www.darkreading.com/remote-workforce/amd-issues-updates-for-silicon-level-sinkclose-flaw
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